<!doctype html>
<html>
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <link href="./index.output.css" rel="stylesheet">
</head>
<body>
    <div class="w">
        <div>1</div>
        <div>2</div>
        <div>3</div>
    </div>
</body>
</html>